Java中实现文件复制（servlet）

String filePath = request.getParameter("filePath");

filePath = request.getServletContext().getRealPath("/") + filePath;

String targetPath = request.getParameter("target");

File file = new File(filePath);

FileInputStream in = new FileInputStream(file);

FileOutputStream out = new FileOutputStream(targetPath + "/"

+ file.getName());

int c;

byte buffer[] = new byte[1024];

while ((c = in.read(buffer)) != -1) {

for (int i = 0; i < c; i++)

out.write(buffer[i]);

}

in.close();

out.close();